There are several good beginner top rope areas. As I always recommend for hikers, I highly recommend purchasing and reading the current paper rock climbing guidebook AdirondackRock. It has a wealth of information that is critical to know for climbing around here. And, it has an index of areas that are particularly suited to top roping.

After spending an evening with the paper guidebook, peruse the various pages on the AdirondackRock website, which can help you with up-to-date information. (For example, the trail to the once popular top roping area at Owls Head Mountain is currently closed.)

I know I am a broken record on this topic on the hiking forums, and I'm regarded as "obsolete" or a Luddite by all the cool kids who have all the world's knowledge on their smart phones. But I stand by this recommendation.